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Bitcoin P2P Digital Currency

Bitcoin is a peer-to-peer digital currency created in 2009 by Satoshi Nakamoto. Peer-to-peer means that no central authority issues new money or manages transactions—these tasks are carried out collectively by the network. It is also the name of the open source software designed in order to use this currency.

The software is a community-driven open source project, released under the MIT license.

Learn how to use Bitcoin »         Learn about Bitcoin's technology »

Download

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Developers

Press mailing list for presentation and interview requests:

Community

  • Visit the unofficial Bitcoin Forums
  • Join the project's lively IRC channels on the FreeNode network or use the FreeNode Web IRC.
    • #bitcoin (General Bitcoin-related)
    • #bitcoin-dev (Development and technical)
    • #bitcoin-otc-foyer (Over The Counter exchange)
    • #bitcoin-market (Live quotes from markets)
    • #bitcoin-mining (GPU mining related)
  • Twitter Search
  • Facebook Page
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News archive

About Bitcoin

Introduction

Bitcoin is one of the first implementations of a concept called crypto-currency, which was first described in 1998 by Wei Dai on the cypherpunks mailing list. Building upon the notion that money is any object, or any sort of record, accepted as payment for goods and services and repayment of debts in a given country or socio-economic context, Bitcoin is designed around the idea of using cryptography to control the creation and transfer of money, rather than relying on central authorities.

Technology

If you are interested to learn more about the technical details of Bitcoin it is recommended to start with these documents:

Features

These are the basic features of any Bitcoin-like network.

  • Bitcoins can be transferred between arbitary nodes on the network.
  • Transactions are irreversible.
  • Double spending is prevented by using a block chain.
  • Transactions are broadcasted within seconds and verified within 10 to 60 minutes.
  • Transactions are received while the computer is turned off.

Economic rules

These rules are enforced collectively by the network. While they will not change for Bitcoin, other digital currencies using Bitcoin's technology may change them to suit their needs.

Features of the Bitcoin network

The network is running for more than 32 months yielding to some impressive security features.

  • Long block chain (more than 140.000 blocks) with lots of processing power securing transactions.
  • Only one major incident (fixed in August 2010).